Vinca Minor

What is Vinca minor ?

The Lesser Periwinkle ; tincture from the fresh plant, gathered at beginning of flowering season, treated like the preceding.

What is the principal use of this drug ?

In eczema of the scalp and face ; offensive smelling eruption which breeds lice ; crusts form over the discharge, and the retained discharge is offensive and causes the hair to mat together, Plica Polonica.

Mention two other drugs with crusts and scabs behind the ears.

Nux juglans and Graphites .

What drug has crusta lactea, with copious urine of an odor, like cat's urine ?

Viola tricolor.